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Foshan Yoshida Casting Material Co., Ltd. mainly supply the calcined petroleum coke and graphitized petroleum coke, if you want to know the price or any questions about the products , please feel free to contact me via below information:

Contact: Owen Zhang


Mobile: +86 182 1805 1155

Wechat: 182 1805 1155

Whatsapp: +86 182 1805 1155

Tel: 0086-757-85685335

Fax: 0086-757-85685300

Add: Room 329,Zinji City building, Xiaxi, Guicheng, Nanhai, Foshan, Guangdong, China

20190117 China petroleum coke market continues to be weak in the short term, the price of related calcined coke recarburizer is low, mainly based on volume.

In terms of Sinopec, some high-sulfur coke shipments in East China are still satisfactory. Individual refinery shipments are still normal. The downstream of petroleum coke along the Yangtze River and North China is basically on-demand. The overall downstream market performance is not good, and there is no trade in the petroleum coke market. Good support. On the other hand, as the Spring Festival approached, long-distance transport vehicles decreased, and the coal market price was weak overall in the near future. The number of return vehicles in some areas decreased, which also affected the trading of petroleum coke market.

In the case of CNPC and CNOOC, the trading of low-sulfur petroleum coke in the northeast region is generally performed. The downstream enterprises purchase on demand, and the low-cost coke in the refinery has a significant impact on the market. Secondly, the downstream electrode and the market of recarburizers have led to a decrease in the stocking operations before the market. . The petroleum coke market in the northwest region is affected by the downstream aluminum market and the low-cost coke in the mainland.

Calcined coke market: the recent sulfur content of 1.0% or so burned coke shipments slowed down, the downstream recarburizer market performance was poor, the demand for low sulfur calcined petroleum coke coke was low, and the low sulfur calcined coke recarburizer was shipped under pressure. .

Related guidance:
[Use of graphitized petroleum coke recarburizer] When smelting in cupola furnace, the amount of pig iron charge is minimized, and graphite carbonizer is used to ensure high carbon equivalent and relatively increase the amount of scrap. Thus, under the conditions of high-temperature melting, carbon with good activity and more remarkable graphitization can be obtained by carburizing. The shape of graphite is better reflected on the casting, which is beneficial to improve the mechanical properties of the casting, reduce the tendency of shrinkage and improve the processing performance.

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What is calcined petroleum coke?

Calcined petroleum coke is derived from the calcination of petroleum coke, which is a by-product of the delayed coking unit's feedstock oil cracking at high temperatures to produce light oil. The yield of petroleum coke is about 25-30% of the feedstock oil. Petroleum coke is a black or dark gray hard solid petroleum product with metallic luster and porosity. It is a carbonaceous material composed of tiny graphite crystals in the form of granules, columns or needles. The petroleum coke component is a hydrocarbon containing 90-97% carbon, 1.5-8% hydrogen, and nitrogen, chlorine, sulfur and heavy metal compounds.

In order to adapt the petroleum coke (green coke) to the requirements, the green coke must be calcined. The calcination temperature is generally around 1300 ° C, in order to remove the petroleum coke volatiles as much as possible. This can reduce the hydrogen content of petroleum coke re-products, and according to the degree of calcination, the temperature is about 1300 ° C for calcined petroleum coke, and at about 2700 ° C is graphitized petroleum coke, so that the degree of graphitization of petroleum coke is increased, thereby improving graphite The high temperature strength and heat resistance of the electrode and the conductivity of the graphite electrode are improved.

What are the uses of calcined petroleum coke?

Calcined petroleum coke can be used in industries such as graphite, steel casting and chemical industry depending on the index. Graphitized petroleum coke is of higher quality and more expensive. According to the different sulfur content, it can be divided into high sulfur coke (sulfur content above 3%) and low sulfur coke (sulfur content below 3%). Low sulfur coke can be used as anode paste and prebaked anode for aluminum plant and for steel The graphite electrode used in the factory. Among them, high quality low sulfur coke (sulphur content less than 0.5%) can be used to produce graphite electrode and carbonizer. General quality low sulfur coke (sulphur content less than 1.5%) is commonly used in the production of prebaked anodes. Low-quality petroleum coke is mainly used for smelting industrial silicon and producing anode paste. High-sulfur coke is generally used as fuel for cement plants and power plants.

1. Used as prebaked anode material for aluminum
The prebaked anode is made of petroleum coke and pitch coke, and the coal bitumen is made of a binder, and then calcined to have a stable geometric shape, which is called a carbon anode block for aluminum electrolysis. The sulfur content of this calcined coke is mainly 3.0% or 2.0%, and some have requirements for vanadium content, and the particle size is mainly 0-30mm.

2. Petroleum coke recarburizer: calcined petroleum coke and graphitized petroleum coke
The sulfur content of the calcined petroleum coke is generally in the range of 0.5% to 1%, and the sulfur content of the graphitized petroleum coke is 0.05% to 0.3%. The calcined petroleum coke recarburizer is generally used for gray iron casting, and the graphitized petroleum coke recarburizer is used for ductile iron.

3. Graphite electrode
Graphite electrode refers to a kind of calcined petroleum coke and pitch coke as the main material, coal tar pitch as the binder, which is made by calcination of raw materials, crushing and milling, compounding, kneading, forming, roasting, impregnation, graphitization and mechanical processing. The high temperature resistant graphite conductive material, called artificial graphite electrode, is distinguished from the natural graphite electrode prepared by using natural graphite as a raw material.

Calcined petroleum coke can be used in the industries of graphite, smelting and chemical industry depending on its quality. Low-sulfur, high-quality cooked coke, such as needle coke, is mainly used to manufacture ultra-high-power graphite electrodes and some special carbon products. In the steel-making industry, needle coke is an important material for developing new technologies for electric steelmaking. Medium sulfur, ordinary cooked coke, used in large quantities for aluminum smelting. High sulfur and ordinary coke are used in chemical production, such as the manufacture of calcium carbide, silicon carbide, etc., as well as fuel for metal casting. Most of the petroleum coke produced in China belongs to low-sulfur calcined petroleum coke, which is mainly used for aluminum smelting and graphite production.

Published in News
Tuesday, 08 January 2019 01:40

What are the uses of petroleum coke?

What is petroleum coke? Petroleum coke is a product obtained by separating crude oil from heavy oil by distillation and then thermally cracking the heavy oil. From the appearance, coke is a black block (or granule) of irregular shape and size. ), with metallic luster, coke particles have a porous structure, the main elemental composition is carbon, and contains less impurities than coal.

Petroleum coke can be used in the industries of graphite, smelting and chemical industry depending on its quality. Low-sulfur, high-quality cooked coke, such as needle coke, is mainly used to manufacture ultra-high-power graphite electrodes and some special carbon products. In the steel-making industry, needle coke is an important material for developing new technologies for electric steelmaking. Medium sulfur, ordinary cooked coke, used in large quantities for aluminum smelting. High sulfur and ordinary coke are used in chemical production, such as the manufacture of calcium carbide, silicon carbide, etc., as well as fuel for metal casting.

Most of the petroleum coke produced in China is low-sulfur coke, which is mainly used for aluminum smelting and graphite production. It is mainly used for the production of carbon products, such as graphite electrodes and anode arcs, for steel making, non-ferrous metals, and aluminum smelting; for the production of carbonized silicon products, such as various grinding wheels, sand sheets, sandpaper, etc.; Production of synthetic fibers, acetylene and other products can also be used as fuel, but when used as fuel, it needs to be crushed by a graded impact mill for superfine pulverization. It can be burned after making coke powder through JZC-1250 equipment, using coke powder as fuel. Mainly some glass factories, coal water slurry plants, etc.
Another use of petroleum coke is to produce higher quality carbon materials after calcination. For example, 3.0% of high sulfur calcined coke after calcination can be used as prebaked anode for aluminum, and low sulfur calcined petroleum coke can be used as recarburizer. It is a low-demand use such as gray cast iron. After deep processing of petroleum coke, graphitized petroleum coke can be obtained. It is a high-quality carbon material and can be used as a recarburizer.

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What is the price of the calcined petroleum coke in 2019 from China? The price of calcined petroleum coke depends on the specifications and particle size, such as the amount of fixed carbon, the amount of sulfur, also the packing, etc., in order to get the exact price, more details is better.

20190117 China's petroleum coke market continues to be weak in the short term, the price of calcined petroleum coke is low, mainly based on the volume, and the demand for low-sulfur calcined petcoke is low.

Foshan Yoshida Casting Material Co., Ltd.  mainly supplies calcined petroleum coke(CPC) recarburizer and graphitized petroleum coke(GPC) recarburizer to all over the world. Customers are welcome to contact for the latest price of CPC & GPC. Here are the specifications:

Calcined Petroleum Coke 1
Fixed Carbon(%) ≥98
Sulphur Content (%) ≤0.8
Moisture (%) ≤0.5
Ash Content (%) ≤0.28
Density/g/cm3 ≥2.03
Powder Resistivity/uΩ﹒m ≤600
Size:0-1mm 0-2mm 1-3mm 1-5mm 8-30mm

Calcined Petroleum Coke 2
Fixed Carbon(%) ≥98
Sulphur Content (%) ≤3.0
Moisture (%) ≤0.5
Ash Content (%) ≤0.5
Density/g/cm3 ≥2.05
Powder Resistivity/uΩ﹒m ≤500
Size:0-40mm, this usually supply to Aluminium Plant

Graphitized Petroleum Coke
Fixed Carbon(%) ≥98.5
Sulphur Content(%) ≤0.05
Nitrogen(%) ≤0.03
Moisture (%) ≤0.5
Ash Content (%) ≤0.8
Volatile Matter (%) ≤0.8
Size:0-2mm 1-5mm 8-30mm

Semi Graphitized Petroleum Coke
Fixed Carbon(%) ≥98
Sulphur Content(%) ≤0.3
Nitrogen(%) ≤0.2
Moisture (%) ≤0.5
Ash Content (%) ≤0.8
Volatile Matter (%) ≤0.8
Size:0-1mm 0-2mm 0-3mm 0.5-2mm 2-8mm 8-30mm

Here is the situation about China market:

Low sulfur calcined calcined petroleum coke recarburizer:
After the 2019 New Year's Day, the domestic low-sulfur calcined coke price was lowered, mainly due to the poor market conditions in the downstream market. The operating rate of graphite electrode enterprises decreased.

Nearly the end of the year, the enterprises have weak purchasing intentions and operate on demand, so it is not good for the low-sulfur calcination coke market. Support, while the current market is in a downward trend, buying up and not buying down the mentality, low-sulfur calcined coke enterprises are mainly based on old customers, some of the calcined coke enterprises are under pressure, most companies have obvious inventory.

The usage of low-sulfur calcined petroleum coke sieves was stable this week. The demand of downstream steel mills and foundry enterprises was generally low. There was no obvious positive effect on raw materials. The impact of capital pressure on enterprises at the end of the year and the market downturn factors, downstream and traders all had the intention of price reduction. Need to purchase.

Medium and high sulfur calcined petroleum coke recarburizer:
This week, the market for high-sulfur calcination coke continued to be under pressure, and the market price fell again by 50-80 yuan/ton. The supply of high-sulfur calcined coke in the market remained stable this week, and the overall production of production enterprises in Hebei and Jiangsu was normal.

Henan Gongyi and Zhengzhou calcined coke enterprises all stopped working; most of the production enterprises in Shandong maintained minimum production load; the demand for medium and high sulfur calcined coke continued to decrease this week, sales were blocked, and most enterprises had inventory backlog.

Market outlook: low-sulfur calcination coke, it is predicted that the market of low-sulfur calcined petroleum coke will be stable next week. Near the end of the year, all enterprises will be mainly shipped, and prices or transactions can continue to be favorable. Medium and high sulfur calcined coke, the market is not good news, and the price of raw petroleum coke falls. Here predicts that the price of calcined petroleum coke will still fall by about 50 yuan/ton next week.

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Graphitized petroleum coke recarburizers are widely used in steelmaking and casting. Due to the impact of the market, many manufacturers are looking for ways to increase production efficiency while saving resources. Therefore, the scrap + recarburizer process is launched in many steel casting manufacturers.

No matter what method has its advantages and disadvantages, but the disadvantage of this method is that the nitrogen content of the waste is much higher than that of cast iron, so the induction furnace melts the cast iron, we must pay attention to the nitrogen level. Want, this is the only way to solve this way should pay attention to the nitrogen content of the recarburizer.

The choice of graphitized petroleum coke recarburizers is the basis that many manufacturers are now seeking. Because the graphitized sulfur content of the material is double zero, the recarburizer is characterized by a soft, elastic texture that can be traced on paper.

Therefore, everyone should choose recarburizers. On the one hand, they should be more assured of their factory production process, on the other hand, the method of identifying high-quality recarburizers, and the local testing institutes for actual testing. This combination is more conducive to improving the quality of castings to increase production efficiency.

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It is customary to say that steel is a general term for steel and iron, but the actual steel and iron are different. The two are mainly divided by the amount of carbon. For the increase of carbon content, it is necessary to use a recarburizer, and a petroleum coke recarburizer[calcined petroleum coke & graphitized petroleum coke] is commonly used.

The carbon content classification standard for steel.

China has used the carbon content of steel as the grading standard for many years. In the national standard for casting carbon steel, regarding the steel grade, chemical composition and mechanical properties, the “ZG” in the grade indicates cast steel, and then The figure indicates the nominal value of the weight fraction of carbon in the steel, expressed in parts per million. Cast carbon steel is classified into three grades according to the phosphorus and sulfur content of its impurity elements, and the grades of grades of phosphorus and sulfur are less than 0.04% (I grade) steel; and the quality of grade II grade steel is less than 0.05%. Less than 0.06% is ordinary (III grade) steel.

1. Low carbon steel: usually C% <0.25%, called low carbon steel, low strength, good plasticity and weldability.
2, medium carbon steel: C% is 0.25 ~ 0.60%, called medium carbon steel, has higher strength, but poor plasticity and weldability.
3, high carbon steel: C%> 0.60%, called high carbon steel. Poor plasticity and weldability, but high strength and hardness after heat treatment.

More than 2% carbon is cast iron, and cast iron is mainly gray cast iron and ductile iron. Recarburizers[CPC & GPC] are often used in the smelting of cast iron.

1. Gray cast iron C%: 2.7%-3.9%. Ordinary gray cast iron is mainly cast iron in which carbon is precipitated in the form of flake graphite. Gray cast iron is widely used. In the total output of various types of cast iron, gray cast iron accounts for more than 80%.
2. Ductile iron C%: 3.5% -3.9%, ductile iron is a high-strength cast iron material, its comprehensive performance is close to steel, it is based on its excellent performance, has been successfully used for casting some force complex, strength Parts with high toughness and wear resistance. Ductile iron has rapidly developed into a cast iron material that is second only to gray cast iron and is widely used. The so-called "iron-based steel" mainly refers to ductile iron.

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Laboratory number MNE18500Gz
SGS Report Number MERGZ180061301
Test report page number: 1/1
Test Report
Applicant Name: Foshan Yoshida Foundry Materials Co., Ltd.
Applicant's Address: Room 329, 3rd Floor, Zijin Business Center, Xiawei Industrial Zone, Xiaxi, Guicheng, Nanhai District, Foshan City
Sample name: graphitized petroleum coke recarburizer (0-2mm)
Sample acceptance date: December 4, 2018
Sample testing cycle: December 06, 2018 to December 06, 2018
Sample serial number
Sample status: 1 sample, particle size <2m, weight about 276g, packed in plastic bags, complete in packaging.
On the application of the applicant, our laboratory will test the sample of the applicant according to relevant standards or methods. The specific test results are as follows

Test items
Symbol unit receives base air drying base "dry basis dry ashless base
testing base

Analyze sample moisture


Volatile matter

Fixed carbon

Total sulfur

Warning: The samples covered in this report are obtained or provided by the customer or a third party who accepts its instructions. The results of the report are strictly limited to the sample being tested and there is no guarantee that the sample will be representative of any cargo. We do not accept any responsibility related to the source or source of the sample. This test report is only used for customer research, teaching, internal quality control, product development, etc. It does not have a social proof role and is for internal reference only.
Tongbiao Standard Technology Service Co., Ltd. Guangzhou Branch

The signature of the unsigned signature of the report is invalid; this report may not be partially reproduced without the written approval of our company.
This report is issued by our company in accordance with its "General Terms of Service". Please pay special attention to the holders of the report that need to be informed. The content of this report only reflects the conclusions obtained by SGS at the time and is subject to customer instructions. SGS is solely responsible to its clients and this report does not exempt the parties from the rights and obligations of the transaction documents. Any unauthorized modification of the content and form of this report, forgery or distortion is a violation of the rules and regulations, and the offender will be held liable.
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Published in 2018

A ductile iron pipe is a type of cast iron that is an alloy of iron, carbon and silicon. Graphite in ductile iron exists in the form of spheres, so the mechanical properties of the material itself are better improved, with the nature of iron and the properties of steel.

Development history of ductile iron
In 1948, A. P. Ganganebin et al. pointed out that magnesium was added to cast iron, followed by ferrosilicon as an inoculant. When the residual magnesium amount was more than 0.04 wt%, spheroidal graphite was obtained. Since then, ductile iron has begun large-scale industrial production.

Development and current status of Chinese ductile iron pipe
The industry of ductile iron pipes in China started in the early 1990s with the strong support of the China Urban Water Supply Association. After nearly 20 years of practical use, its safety and practicability have been widely recognized by the water supply industry. The annual output has reached 2.2 million tons, 11 times that of 1990. Since China is a country with a lack of water resources, there are more than 600 water-scarce cities and more than 200 water-scarce cities. The water supply and water-saving business is in the ascendant, and ductile iron pipes have broad prospects for development.

Ductile iron pipe is a kind of cast iron pipe. The ductile iron pipe is mainly called centrifugal ductile iron pipe. It has the essence of iron, the performance of steel, excellent anti-corrosion performance, good ductility, good sealing effect, easy installation, mainly used for Municipalities, industrial and mining enterprises for water supply, gas transmission, oil transportation, etc., the quality requirements of the cast iron pipe spheroidization level control is 1-3 (spheroidization rate) 80%.

The recarburizer required for the smelting cast iron in the smelting process is usually a graphite recarburizer. According to the requirements of carbon and sulfur content, different carbon and sulfur content recarburizers are selected. The graphite recarburizer sulfur content provided by Foshan Jitian Foundry Co., Ltd. There are 0.3% and 0.05%, the specific indicators are as follows:

Semi-graphite petroleum coke recarburizer:
Fixed carbon (FC) /% : ≥98
Sulfur (S) /% : ≤0.3
Moisture (%) /%: ≤0.5
Ash (A)/% : ≤0.8
Volatile (V) /%: ≤0.8
Nitrogen (N) /%: ≤0.2
Particle size Remarks: 0-1mm 0-2mm 0-3mm 0.5-2mm 2-8mm 8-30mm (produced according to customer requirements)

graphitized petroleum coke recarburizer:
Fixed carbon (FC) /% : ≥98.5
Sulfur (S) /%: ≤0.05
Moisture (Mad) /% : ≤0.5
Ash (A)/%: ≤0.8
Volatile (V) /%: ≤0.8
Nitrogen (N) /%: ≤0.03
Particle size Remarks: 0-2mm 1-5mm 8-30mm (produced according to customer requirements)

related information:
In the transmission and distribution of drinking water, ductile iron pipes have achieved great success in the fields of hydraulics, foundry and metallurgy and have earned a reputation. In order to better serve the protection of drinking water resources in China, Jinhui Casting Co., Ltd. currently covers 30 kinds of spheroidal graphite iron pipes and fittings of DN80-DN2600 in China. The products strictly implement the internal standards of Jinhui Casting Pipe and comply with ISO2531. , EN545 and GB13295 standards.

Although the properties of ductile iron and steel are very different, the quenching of the two is basically the same. The only difference is that the parameters of quenching of ductile iron have little to do with their own cost, including heating temperature, holding time, The cooling rate and so on, and the key depends on the matrix structure of the workpiece. Let's take a look at the temperature setting in the quenching section: When quenching ductile iron, it is concerned with its heating problem because it has a direct effect on hardness. In order to achieve the hardness of the workpiece, its quenching temperature is generally 800-900 ° C, which will have a negative impact if it is too low or too high.

The advantage of ductile iron pipe is that it is a material between rigidity and elasticity, which is the advantage to ensure the safe transfer of industrial water. Industrial water pipelines must take into account the external loads caused by soil backfilling and transportation. Therefore, it is particularly important to select pipes with excellent mechanical properties to avoid the impact of production leakage and water stop events. The high-performance Jinhui ductile iron pipe allows the conditions for burying and backfilling to meet minimum requirements and does not require welding operations, thus achieving safety and investment savings.

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Graphitized petroleum coke recarburizer mainly contains 0.3% sulfur and 0.05% sulfur. The lower the sulfur content, the higher the price of calcined petroleum coke. The low-sulfur and low-nitrogen total graphitied petroleum coke recarburizer is mainly used for casting material ductile iron. Foshan Jitian recarburizer is mainly supplied to Guangdong and surrounding areas. Due to business development, it will also set up a branch in Chongqing to expand the supply of recarburizers in Chongqing and surrounding areas.

The development of Chongqing's industry has driven the increase in demand for materials. For the foundry industry, the demand for recarburizers is also the same. In 2015, there were 7,747 industrial projects under construction in Chongqing, with a total planned investment of 1.08 trillion yuan. 137 key projects such as Beijing Hyundai and Huike Panel started construction on schedule. The total planned investment is 109.6 billion yuan, and the investment completed during the year was about 34 billion yuan. 122 projects including the first phase of Huachen Xinyuan Fuling Base and Juyuan Stainless Steel were put into operation on schedule. 74 projects including Changan Ford Third Plant, Beiqi Yinxiang Phase I Expansion and Southwest Aluminum 220,000 tons Aluminum Casting were put into production on schedule. The total output value of the production projects reached 154 billion yuan, contributing 53% to the industrial economic growth.

The graphite recarburizers supplied by Yoshida Recarburizer are as follows:

Semi-graphitized petroleum coke recarburizer:
Fixed carbon (FC) /% : ≥98
Sulfur (S) /% : ≤0.3
Moisture (%) /%: ≤0.5
Ash (A)/% : ≤0.8
Volatile (V) /%: ≤0.8
Nitrogen (N) /%: ≤0.2
Particle size Remarks: 0-1mm 0-2mm 0-3mm 0.5-2mm 2-8mm 8-30mm (produced according to customer requirements)

Fully graphitized petroleum coke recarburizer:
Fixed carbon (FC) /% : ≥98.5
Sulfur (S) /%: ≤0.05
Moisture (Mad) /% : ≤0.5
Ash (A)/%: ≤0.8
Volatile (V) /%: ≤0.8
Nitrogen (N) /%: ≤0.03
Particle size Remarks: 0-2mm 1-5mm 8-30mm (produced according to customer requirements)

Feel free to contact us for the latest price of recarburizer, or if you have any needs, we can discuss it and look forward to your call!

related information:
Chongqing Foundry is the foremost person in the state-owned company. Chongqing Precision Casting is mainly engaged in the research and development, production and sales of vehicles and vehicle zero parts, electrical appliances, general environmental protection, machine tools, military electronic information, and smelting metal products. It is the first state-owned company listed outside Hong Kong since its direct administration.

The reason for the rapid growth of the foundry mold industry is mainly due to the rapid development of China's automobile and motorcycle industry and the rapid growth of casting mold production. As we all know, casting parts are used in a wide range of applications, almost all industrial fields, in which the casting parts of automobile parts are ranked first in terms of their large quantity, variety, strict requirements, high quality and the use of non-ferrous metal materials. , the largest share of the entire foundry industry.

In recent years, due to the prosperity of industry, there has been a dilemma of electricity shortages throughout the country in the summer, especially in the high-energy consumption industries such as foundry and metallurgy, which have been staged in the hot summer. In order to implement the goal of casting energy saving and consumption reduction proposed in the “Twelfth Five-Year Plan”, we will continue to deepen the structural energy-saving measures such as eliminating backward casting capacity and strictly adding energy-saving assessment of casting projects, increase the promotion of advanced applicable casting energy-saving technologies, and strengthen the foundry industry. And enterprise energy management.

At present, China's automobile and motorcycle industry has entered a period of rapid growth, and its output has grown substantially for many years. It ranks first in the world, especially the car that is closely related to the foundry industry has the fastest growth, and has dramatically increased to complex, large-scale, The demand for precision casting molds has thus become an important support for the foundry industry – the foundry mold industry has achieved unprecedented opportunities for development. It can be predicted that the production of casting molds in China will still gain strong thrust mainly from the domestic automobile industry in the next few years.

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High-efficiency carbon-reinforcing agent refers to a high-carbon low-sulfur recarburizer, which is actually a graphitic recarburizer of petroleum coke. The recarburizer of petroleum coke is mainly divided into three categories: calcined coke after calcination, and high temperature. Calcined graphitized petroleum coke, the third is semi-graphitized petroleum coke, the degree of calcination is between the two, and the price is also different depending on the degree of calcination.

Foshan Yoshida semi-graphitized petroleum coke recarburizer indicators are as follows:
Moisture (Mad) /% ≤0.5 GB/T211-2007
Ash (A)/% ≤0.8 GB/T212-2008
Volatile matter (V) /% ≤ 0.8 GB/T212-2008
Fixed carbon (FC) /% ≥ 98 indirect carbonization method GB/T212-2008
Nitrogen (N) /% ≤ 0.2 Oxygen and nitrogen analyzer GB/T214-2007
Sulfur (SI) /% ≤0.3 sulfur analyzer GB/T30733-2014
Particle size Remarks: 0-1mm 0-2mm 0-3mm 0.5-2mm 2-8mm 8-30mm (produced according to customer requirements)

Foshan Yoshida Graphitized Petroleum Coke Recarburizer Index is as follows:
Moisture (Mad) /% ≤0.5 GB/T211-2007
Ash (A)/% ≤0.8 GB/T212-2008
Volatile matter (V) /% ≤ 0.8 GB/T212-2008
Fixed carbon (FC) /% ≥98.5 Indirect carbonization method GB/T212-2008
Nitrogen (N) /% ≤0.03 Oxygen and nitrogen analyzer GB/T214-2007
Sulfur (SI) /% ≤0.05 sulfur analyzer GB/T30733-2014
Particle size Remarks: 0-2mm 1-5mm 8-30mm (produced according to customer requirements)

These are indicators and particle sizes for regular production and supply. The price of recarburizers also varies according to the market. Therefore, if you want to know the latest high-efficiency recarburizer prices, please contact us!

Zhaoqing Gaoyao District Hardware Machinery Parts Factory. The factory is located in Zhaoqing City, Gaoyao District, Lingnan City, Lingnan City, more than 20 kilometers away from Zhaoqing City, adjacent to Gaoming District of Foshan City. The transportation is convenient and the geographical position is very superior. We are willing to cooperate with colleagues from all walks of life to seek common development and continue to provide the best products and services for new and old customers. Our main production, processing and sales: pig iron casting HT150-HT350, ductile iron QT500-QT700. The products use clay sand, resin sand, and medium frequency induction furnace furnace casting process. Use pre-furnace carbon-silicon analytical instruments to ensure product quality. With the principle of multi-variety management and the principle of small profits but quick turnover, the company has won the trust of customers. The factory always pursues the enterprise tenet of “Honesty, Truth, Service, and Satisfaction”, and fully follows the needs of customers and continuously carries out product innovation and service improvement.

The Casting Workshop of Guangzhou Diesel Engine Co., Ltd. is the strongest casting production base in South China and has passed ISO certification. Pingyuan County Hengming Automobile Chassis Manufacturing Co., Ltd. is a famous trademark enterprise in Guangdong Province and has passed ISO quality system certification.is the result of a strong alliance. On the basis of the integration of the original technology and management, the company has increased its investment in production equipment. The company's main production equipment: 5 tons, 20 tons of resin sand production line, 1.5 tons, 10 tons of medium frequency melting furnace each 2 Taiwan, 7 tons, 12 tons of each holding furnace, large shot blasting equipment, large annealing, normal furnace. The inspection equipment includes: pre-furnace carbon silicon analyzer, thermometer, electronic scale, sand analysis equipment, physical and chemical analysis equipment, metallography, and spectral analysis. The company mainly produces cast iron parts, including ductile iron, vermicular cast iron, alloy cast iron and ordinary gray cast iron. The industries involved include: large and medium-sized diesel engine castings, engineering machinery, hydraulic machinery, food machinery, machine tools, mold wind castings, etc., can be supplied according to customer requirements, rough and fine casting.

Production and manufacturing of machine tool castings, with advanced technology and experience, has won the trust and support of our customers. I have always used gray iron casting for machine tool castings. Why do I choose this material? What are the advantages?
Machine tool castings using gray iron casting materials:
1. Due to the large size of machine tool castings, the length can reach several meters; the quality can reach more than 10t, and the wall thickness is 15~30mm. The requirements are: good precision stability and shock absorption, high modulus of elasticity, suitable compressive strength, moderate hardness and excellent wear resistance;
2, the process requires good casting performance, has high resistance to deformation, and is easy to cut, and requires lower production costs, such as melting with a cupola, using a smaller amount of alloying elements.
3. China's gray iron casting machine tool castings generally use HT250 and HT300 to inoculate iron castings as materials. In order to improve the service life of the machine tool, various alloy cast irons such as P-Cu-Ti cast iron, Cr-Mo-Cu cast iron and V-Ti cast iron are widely used.
4, gray iron casting machine tool casting process is more durable, casting performance is better, not only practical, the price is relatively more affordable, so our company has continued to use gray iron casting castings.
In addition to machine tool castings, gray cast iron is also commonly used as casting material for various basic platforms. The main products are cast iron platform plate, test platform, iron floor, coordinate measuring platform, T-slot assembly platform, inspection and marking platform, T-slot ground rail. , machine tool castings, etc. These cast iron platform products are widely used in machinery manufacturing, aerospace, automotive manufacturing, high-speed rail, wind power, electric motors, engine manufacturing and so on.

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